What is the primary function of the mysqli_query() function in PHP?
A). Establishing a database connection
B). Executing SQL queries
C). Fetching data from the database
D). Closing the database connection
What is the purpose of the mysqli_close() function in PHP?
A). Establishing a database connection
B). Executing SQL queries
C). Fetching data from the database
D). Closing the database connection
Which of the following SQL operations is used to update existing data in a database table?
A). INSERT
B). SELECT
C). UPDATE
D). DELETE
What is the purpose of the mysqli_num_rows() function in PHP?
A). Establishing a database connection
B). Executing SQL queries
C). Fetching data from the database
D). Getting the number of rows in a result set
What is the primary advantage of using prepared statements in PHP for executing SQL queries?
A). Better performance
B). Improved security against SQL injection
C). Easier syntax
D). Compatibility with older PHP versions
Which of the following SQL operations is used to insert new data into a database table?
A). INSERT
B). SELECT
C). UPDATE
D). DELETE
Which PHP extension provides procedural and object-oriented approaches for executing SQL queries and interacting with MySQL databases?
A). PDO
B). MySQL
C). SQLI
D). MySQLi
What is the primary advantage of using PDO extension over MySQLi for executing SQL queries in PHP?
A). Better performance
B). Improved security against SQL injection
C). Easier syntax
D). Compatibility with older PHP versions
Which of the following PHP functions is used to execute an SQL query in PDO extension?
A). pdo_execute()
B). pdo_query()
C). pdo_fetch()
D). pdo_prepare()
Which of the following SQL operations is used to remove all data from a database table?
A). INSERT
B). SELECT
C). TRUNCATE
D). DELETE